If I give money to a charity that finances medical research, I think I'm doing a mitzvah, but of what sort? Is this tzedakah when I'm not clothing or feeding the poor? Is it saving a life when there ...

Authorities like the Or Zaru'a have been so stringent as to say that even mental pledges are binding when it comes to gifts to the poor. Many less extreme opinions hold that verbal pledges of the same ...

The Ohr Yisrael says that on one’s birthday, it is proper to engage in introspection and seek ways to improve himself(1), Daven for the amud (2), and to give extra money to tzedaka(3)"
1) Ohr Yisroel ...

Let's say your income before taxes and contributions was $1,111, and your tax rate is 10%. Ordinarily, you would pay $111.10 in taxes, and have $999.90 left over, which would be eligible for maaser. ...

What dates/months/seasons (or holidays) are considered most auspicious and/or customary for giving monetary gifts, such as tzedakah? I am aware from my own experience that Purim and erev Yom Kippur ...

Most American charities, to preserve their tax-exempt status, have to file a Form 990 annually with the federal government, detailing some important statistics about their organization, including how ...

The situation comes up a lot.
You're praying the morning prayers in synagogue and it's erev shabbos/yom tov; the collectors flood the synagogue. Should you give a bigger amount to fewer collectors or ...

Related to this question, what if after deciding to donate Tzedaka to a cause, but before actually getting to do it, the cause goes away. E.g. the poor person dies, the organization closes down, etc.
...

This question discusses both the obligation to give charity and certain requirements of the receiving institution, but the "best answer" does not address one particular type of charity. It mentions ...

(1) Let's say your charitable contribution of $100 resulted in a deduction of $1 from your tax bill. Would your maaser contribution from that hundred be counted as $99 total or $100 total?
(2) Let's ...

What are the earliest sources that state that charity ought to optimally be used to support Torah study. I.e. if one can choose various charitable causes to support, that s/he should choose to donate ...

If we accept that giving to the poor and an emphasis on Tzedek are Mitzvot that is repeatedly noted within Tanakh - for example some Midrashic commentary suggests that the sin of Sodom was actually a ...